- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
En tetragonal mineral, MgF <sub>2</sub>; farveløs; strukturelt relateret til rutil.
Industry:Mining
En tetragonal mineral, Mn <sub>2 +</sub> Mn <sub>3 + 6</sub> SiO <sub>12</sub>; skørt; kan indeholde mærkbar jern.
Industry:Mining
En tetragonal mineral, MnO <sub>2</sub>; rutil gruppe; trimorphous med akhtenskite og ramsdellite; blød; metallisk; stålgrå; massive eller reniform; en kilde af mangan. Sammenlign: psilomelane grå mangan ore.
Industry:Mining
En tetragonal mineral, Na <sub>2</sub> (UO <sub>2</sub>) (PO <sub>4</sub>) <sub>2</sub> .8H <sub>2</sub> O; meta-autunit-gruppen; radioaktive; gul.
Industry:Mining
En tetragonal mineral, Na <sub>4</sub> AlBeSi <sub>4</sub> O <sub>12</sub> Cl; i bjergmassivet Ilimaussaq, Sydvestgrønland. Tidligere kaldet beryllosodalite.
Industry:Mining
En tetragonal mineral, Na <sub>5</sub> Al <sub>3</sub> F <sub>14</sub>; massive; kornet; opstår med kryolit.
Industry:Mining
En tetragonal mineral, Janne Nielsen <sub>3</sub> (PO <sub>4</sub>) <sub>2</sub> (OH) <sub>4</sub> .2H <sub>2</sub> O; blålig-grøn; danner oolitisk eller krystallinsk encrusting lag; i Cedar dalen og i nærheden af Fairfield, UT.
Industry:Mining
Skip izmanto, lai iegūtu materiālu virsmas šahtu; ražo dažādu izmēru un dizainu gan vertikāli un slīpums vārpstas, ieskaitot tipover modeļiem un apakšējās durvis izmetes modeļiem.
Industry:Mining
